ML19336A644

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Responds to IE Bulletin 80-20, Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches. No Type W-2 Switches Used in safety-related Applications
ML19336A644
Person / Time
Site: Humboldt Bay
Issue date: 09/08/1980
From: Crane P
PACIFIC GAS & ELECTRIC CO.
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
IEB-80-20, NUDOCS 8010300391
Download: ML19336A644 (1)


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Mr.

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II. Enge l:-:e n, Dire c' tor Office of Inspection and Enforcement Region V U.

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2;uclear Regulatory Commission 1990 North California Boulevard Walnut Creek Plaza, Suite 202 Walnut Creek, CA 94596 Re:

Docket No. 50-133 License ;;o. DPR-7

Dear Mr. Cngel:

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This is in response co your le tter dated July 31, 1980 concerning IC 3ulletin I;o. 30-20.

This bulletin requested each licensee to determine if.;estinghouse Type W-2 control switches are used in safety-related applications and, if so, to perform continuity tests on all such switches.

There are ao Westinghouse Type U-2 control switches (three position with spring return to neutral), used in safety-related applications at Humboldt Bay Power Plant Unit No.

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An estimated four man-hours were expended in the review and preparation of this response.

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CRANE JR.

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Director Office of Inspection and Enforcement U.

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Nuclear Regulatory Commission Washington, DC 20555 USNRC 0

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